remove warning on MinGW32 (src\classes\env.pmc:29: warning: function declaration isn't a prototype)
remove warning on MinGW32
(src\classes\env.pmc:29: warning: function declaration isn't a prototype)

git-svn-id: 6e74a02f85675cec270f5d931b0f6998666294a3@10903 d31e2699-5ff4-0310-a27c-f18f2fbe73fe

ashgti/parrot,ashgti/parrot,ashgti/parrot,ashgti/parrot,ashgti/parrot,ashgti/parrot,ashgti/parrot